If your kids have a tendency to roll out of bed at night (as my 9-year-old son sometimes does) you can add bumpers to each side of the bed to make it more difficult for them to roll off the bed. Simply add a pool noodle to each side under the fitted sheet.

This tip comes from Reddit user RyVal. It may not work if your kid is a heavy duty roller, but for two bucks worth of pool noodles it's worth trying out.